Flour weighing, blending, elevating, and sifting machine



v F. X. LUTERBUR. FLOUR WEIGHING, BLENDING, ELEVATING, AND SIFTING MACHINE APPLICATION FILED FEB, 17, 1919.

IAQ@ I 8 .Patented Nov. 7, m22;

II- w M F. X. LAUTERBUH.

FLOUR WEIGHING, BLENDING,l ELEVAIING, AND SIFTING MACHINE. PPLlcAloN min FEB. 17. mg.

1,434,618. l Patente/Nom 7, w22.

5 SHEETS-SHEE1 3.

v F. X. LAUTERBUR.

FLOUR WEIGHING, BLENDING, ELEVATING, AND SIFTlNG MACHINE.

APPUCATION .FILED FEB. l?. 1919,

Patented Nov'. if, 19221..

SISHEETS-SHEE 4. A

F. x. LAUTERBUR.

FL'OUR WEIGHING, BLENDING.; ELEVATING, AND SIFTINGKMACHINE,

' APLxcATloN FILED ma. l?. 1919,

ll., Patented Nov.. 7 1922'.

' Q D IJSHETSvSHEE 5.

eli@ d Q0 k Q O Q0 V\ ,r EE

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D N 5j QJ Ef J ful Improvements Patented Nov.. i", HQE@ uniTan sTaTes FRANK X. LAUTERBUR, OIF SYDNEY, OHO.

FLOUR WEIGHNG, IBLENlDXNG, ELEVTXNG, AND SETTING MACHINE.

.application filed February 17, w19.' Serial No. 277,492.

T 0 @ZZ whom t maig/ concern I Be it known that ll, FRANK X. LAUTER- non, acitizen of the United States, residing at Sidney, in the county of Shelby and State of Ohio, have invented certain new and usein Flour Weighing, Blending, Elevating, and Siftingv Machines, of which the following is a specification.

The invention relates to a flour weighing', blending, elevating and sift-ing machine. A

The object of the present invent-ion is to provide a simple, practical and eiicient machine of strong, durable and -comparatively inexpensive construction designed for handling fiour and similar material and for preparing the same for depositing such material into a dough mixer and capable of enabling the material to be accurately weighed, and adapted to blend uniformly a plurality of different grades of flour or other material, and capable also of elevating suc-h ma` terial and of sifting the same in an elevated posit-ion and of depositing the sifted material in a dough mixer.

It is also an object of the invention to provide a machine of this character in which the gearing and other instrumentalities Will not interfere with the act of weighing of the material, and in which t-he flour may be handled directly from the bin or receptacle in which the material is weighed Without the movement of the Weighing mechanism incident to` the gradual decrease in the weight of the material thereon, affecting the continuous operation of the machine in removing the material from the bin or receptacle, blending the several Vgrades o r kinds of material and sifting and depositing the material in a dough mixer.

A further object of the invention is'to provide a flour blending, elevating and sifting machine which, While in its more complete embodiment Will be capable ofthe movement of ,various partsv incident to both the weighing yoperation and the movement of the weighing mechanism incident to con-Y veying the material from the same, may be installed in rigid mountings Without the provision ofthe weighing mechanism or the means for blending a plurality of grades or kinds of material. f.

Another object of the` inventionl is to equip the machine withan efficient sifting means for enablingany foreign substances contained in the material to be completely removed therefrom, and the flour or other spirit or sacrificing any the machine with improved drive mechanismca.p able of convenient control of the mechanism for feeding, conveyingand sifting the flour-or other materia-l, and adapted to be voperated from the main shaft of the dough mixer machine or other'souroe of power.

A'lilith this and other objects in View, the invention consists in the construction and liriovel combination of parts hereinafter fully described .and illustrated in the accompanying drawings and y"pointed out in the claims hereto appended, it being understood that various changes in t-he form, proportion, size and minor details of construction, .Within the scope ofjthe appended claims, may be resorted to Without departing from the of the advantages of theinvention ln the drawings:

f. Figure l is a front elevation of a' flour weighing, blending, elevating and sifting machine constructed in accordance with this invention. Figure 2 is a vertical longitudinal sectional view of the same.

Figure 3 is a horizontal sectional View, illustrating the manner of mounting the vibratory sifter.

.lligurevvt' is a vertical sectional view through the elevator.

(Figure 5 is an elevation illustrating an embodiment of the invention in 'which the weighing mechanism is omitted and in which a dierent form of drive having a single clutch, is employed.

Figure 6 is a detailed sectional view, illustrating a modification ofthe guiding means for the vibratory sifter.

Figure 7 is avertical sectional view` illustrating the arrangement of the belt drive of a machine equipped with' weighing mechanism.

Figure 8 is a detailed section of the vibratory sift/er.

Figure 9 is a side elevation of the vertical elevator.

Like 'numerals of reference designate corresponding parts in 'the several figures of thev drawing.

-Referring particularly to Figures 1 to a, inclusive,.in which the invention has assolll@ ciated with it the' weighing` mechanism, l designates a bin mounted upon a platform scale 2 'and divided by vertical partitions 23 into a plurality of separate connnirtments ft adapted to receive a plurality of ditiercnt grades of flour or diti'erent kindsl of material for enabling the saine to bc blended.

The lower portion of the bin communicates' with a casing 5 of the lower horizontal screw conveyor (i which carries the material from the compartments t o'l' the bin 1 to a vertical elevator i'. ln order to positively dcliver the tlour or other contents of the compartments of the bin to the screw conveyer. the bin is equipped with an agitator con- Sistine" of a horizontally disposed Ashaft o journalled in suitable bearings ot' the bin and equipped with agitator arms or member 9 located in each of the compartments -land adapted to pass through the contents of the bin and break up lumps thereof and to prevent the material from banking up in the compartments and remaining therein. l`he agitator arms are shown in the form of U- shaped loops or members. but they may be of any other desired form, and they will enable the materials of the several compartments of the bin to be uniformly and accurately blended. In order to compensate for the small amount of material which will naturally adhere to the interior of the bin. the lower screw conveyer. the elevator T and the upper screw conveyer 1t), the platform scale is provided with a counter-balancingr weight l1 and a scale beam 12 receiving the said weight and adapted to permit various adjustments to be made to properly allow for such material` so that an accurate weighincr of the material delivered to the dough mixer 13 may be made. The agitator shaft 8 is connected with the outer end of the shaft 11 of the screw conveyer 6 b v sprocket gearing` consisting of any uppersprocket wheel 15, a lower sprocket pinion 1G and a chain belt 1T, and the'agitator is adapted to be driven at a relative slow speed and will produce a proper feeding of the material tort-he lower screw conveyer.

The lower screw conveyer delivers. atl its inner end, the material tothe elevator 7, Which consists of a vertical casingf 1S. buckets 19 and endless belts 20 cariving the buckets and arranged on lower wheels 21 and 22 and upper wheels 23, and 24, the wheel 24 beim;r arranged in an outwardly voff set position for causingr the buckets to project over and positively deliver the ma terial into the casing 26 of the upper screw eonveyer 10. The belt 2O may be a plain or chain belt, and the upper and lower wheels are arranged to form front and rear vertical flights, top and bottom horizontal flights, and a short inclined ight 2T extendingi from the wheel 24 to the wheel 25. .The top flight of the endless belt extendsrearwardly beyond the loweirhorizontal flight in order to enable thc buckets to dump their contents into the casing 2o of the upper screw conveyer lt. The. buckets 1t) vreceive the material at the bottom of the elevator casing and they travel upwardly at the front flight of endless belt and in an upright. po sition and they areturned to a substantially horizontal position at the front upper wheel 333. and they travel rearwardly in such position until they assume an inclined position in passionY around the rear side of the wheel 2t. the material being dumped while, the buckets are in such inclined position. The casing of the lower horizontal conveyer extends partially into the lower portion of the bins. as clearly illustrated in Figtire -t ol.' the drawings. and the inner end of the rscrew conveyer is arranged partially within` the lower front portion of the casing of the vertical elevator. The lower screw conveyer and the vertical elevator' are mounted upon the platform of the section2 and are supported by the weighing mechanism of the scale. which may be of any desired construction. as will be readily understood, and as any suitable construction of weighing mechanism may be employed. a specitc'description ot the same is deemed unnecessary.

The upper screw conveyer which extends horizontally from .the upper portion of the vertical elevator is provided at its outer end with a depending outlet 28, which extends into a relatively fixed receiver or casinp` 2t) of a vibratory sifter 3i), a telescoping lit being.r provided and a sutcient play of the outlet bein; r alforded to compensate for the up and down movement of the parts through the action of the platform scale` both durin cr the weighing operation when the parts are carried downward by the introduction of the material into the bin and the upward 'lli movement of the parts resulting from conve'ving the material from the bin and depositing the material into the casing 29. The outer portion of the bin is connected with the upper end of the casingr 18 of the vertical elevator by side inclined brace 31, and the top of the elevator casing is connected with the outer end of the upper screw conveyer casing by a top inclined brace and the two braces preferably consist of a single bracing member having a connectingr portion 33, suitably secured to the top of the elevator casing. The lower end of the side brace and the outer end of the top brace'are suitably secured to the bin and the casing ot the upper screw conveyer, and a rigid unitary structure is therei ,esame tical elevator to the lower screw` conveyerl by means of exteriorly arranged sprocket gearing consisting of upper and lower sprocket wheels 34 and 35 and a connecting sprocket chain 36. The upper sprocket wheel 34 lis connected with one of wheels of the vertical elevator and the lower sprocket `wheel 35 is mounted on the inner end of the shaft 14 of the lower screw conveyer.

The casing 29, which is provided at the topwith an inlet 39 to receive the outlet of the screw conveyer, is supported by one or more horizontal rods ormembers 40 secured in openings 41 of post 42 by set screws 43 or other suitable fastening means adapted to permit the rods to be readily secured to and removed from the post and adjusted -to arrange the 'sifter casing in proper position withA relation to the outlet of'the upper conveyer. casing. rThe post 42 is suitably'v mounted upon the columns 43a of the dough mixer but it will be readily apparent that while the construction shown in the accompanying drawings is advantageous and resultsin a unitary structure, the sifter casing may be supported in any other desired many ner, such as by securing it to a wall, suspending it from a ceiling or anylother equivalent means. The casing or housing 1s provided with a suitable door 44 a apted to afford access to the interior of t e sifter casing or housing to enable the sifter 30 to be readily removedand replaced by a sifter having sieves or screens of a different mesh or for the enabling of foreign matter to be readily ,removed from the sifter or formally other sifter 30, may be of any other desired construction and while the vibratory sifter is shown of circular` form, it`mayof course. be of any other desiredform. @ne end of the rod cr member 47 is guided in ,the slot 4of opening 46 of the combined guide and bearing 45 and the other end of the rod or member 47 is connected with a crank element 49 which may consist of a wrist pin carried by a horizontal gear wheel 50 which, when rotated, reciprocatesthe rod or member 47 and also imparts a lateral movement to the same, so thatwhen the vibratory sifter is actuated it will-be given a backward and forward movement and also a lateral or sidewise movement, and the movements of the vibratory sifter will be closely similar to the hand, in operating al hand sifter. The opposite walls of the slot or opening 46 are preferably conveXly curved as illustratv ,eration and the verticalV edin Figure 3 f the drawing, and while the combined guide and bearing 45 is located at the outer end of the rod or member 47 it will be apparent that it may be arranged at an intermediate point as shown at 5l in Figure 6 of the drawings. There is suflicient play of the parts at theconnection of the rod or 1nember47 with the actuating means to permit therpnecessary vertical oscillation incident to the weighing opinrjvement' is relatively slight. j L

The movements of the vibratory sifter may be varied by varying the distance between the crank .element 49 and the center ofthe rotary element or gear wheel 50, the movements being increased by increasing the distance of the wrist pin from the center of the wheel 59. The vibratory sifter 30 consistsof a casing and .one or more flat sieves or screens, a pair of sieves or screens52 and 53 being shown in the accompanying draw-- ings. The upper sieve or:l screen 52 is designed to be of a coarse mesh, say of one inch, for breakingup any lumps 'forming in the material and the lower sieve or sc-reen 53 is designed to be of relatively small mesh for effecting a final separation of impurities or foreign matter from the material fed to the dough mixer 13. The inner end of the rod or member 47 of the vibratory sifter is detachably Secured to the wrist pin 49 by any suitable means, and when it is disconnected from the wrist pin the vibratory sifter may be readily removed from the casing through the door opening 54 of the casing or housing 29. The casing or housing 29 is opened at the bottom and the material passing through the vibratory sifter is readily deposited in the dough mixer during the -operation of the machine, which is associated with and which receives its motion from the main shaft 55 of the dough mixer.

The dough mixer` which is preferably op- .erated by an electric motor 56, is connected by beveled gears 57 and 58 with the lower end of the vertical'shaft 59,- which is journalled in the lower bearing bracket 60 and in an upper bearing bracket 6l and composed of upper and lower sections telescopically connected by a coupling sleeve 62. The lower bearing bracket is preferably mounted upon the adjacent column 43 of the dough mixerand has a coupling sleeve secured to it by suitable fastening device 63, which may consists of a pin or key, a clamping screw or any other suitable means, and the upper section, which is mounted in the bearing bracket 6l is adapted to telescope vertically into the sleeve with the movements of the mechanism incident to the weighing operation and also to the removal of the material from the platform scale incident to the operation of the machine. The interior of the sleeve may be square or any other non-circular shape. and the upper end of the upper .section ol of the vertical .shaft 5S? has the rotary geai' element I3() secured to it', The upper rotary gear etemcnt 5() is preferably in the forni of a beveled gear which meshes with a vertical beveled gear (35 on a horizontal shaft (i6 journalled in the bearing bracket 61 and also carrying a sprocket pinion (3T which receives the sprocket chain ($8 extending from thc sprocket pinion of the shaft (tti to a sprocket wheel (3f) which is connected with the shaft of one of the. wheels of the vertical elevator. The sprocket wheel o5 is loose on the shaft GG, which is horizontally disposed and which extends aci-oss the upper portion of the casing of the vci'tical elevator, exteriorly thereof. and the said sprocket pinion G5 is connected with and disconnected from the shaft GG by a suitable clutch Til. having a movable member actuated by a hand lever Tl. The clutch may be of any desired,construction and the movable member is thrown into and out of engagement b v the oscillation of the lever Tl. which is fiilcriimed at its iipper end to a suitable bracket 72. The main shaft of the dough mixer is also equipped with a suitable clutch 73 which is controlled by a lever 74, fulcrumed at an intermediate point at 75 on the bearing bracket G() and adapted to be operated to connect the lower vertical bevel gear 5T to the shaft and disconnect it therefrom to throw the vibratory sitter into and out of operation. The upper screw conveyor l() is connected with the elevator by sprocket gearing To or othersuitable means and in starting the machine the clutch lever 74 its first operated to start thc vibratory lsifter and motion is communicated to the saineI through the beveled gearing and the vertical shaft. which actuates the u'pper rotary element and which carries the wrist pin or crank element for reciprocating the rod or member of. the vibratory sifter. The shift lever Tl is then operated to transmit motion from the vertical shaft to the elevator. the upper and lower screw conveyers. and the 'agitator of the bin or receptacle 1. Previous to the starting of the machine. the material to be delivered to the. dough mixer is weighed in the bin by means vof the platform scale. and the telescopic coupling sleeve connection between the upper and lower; seetions of the vertical shaft will peri-nit the weighingoperation without the drive 'gear interfering with such weighing-operation. and the materi lweighed in the bin 1 will cause a downwardmovement of the bin, the elevator and the upper and lower horizontal screw conveyers, and as the material is removed froin the'binbv the machine', the mechanism supported by the platform scale will gradually move upwards until the weight due to the weight of the material within the bin is entirely removed from the platform scale. The telescopic sleeve connection between the sections of the vertical shaft. permits this upward movement of the mechanism carried by the platform scale. without att'ecting the operation of the drive gearing. Also the 1ioint connection formed b v the outlet and the casing or housing of the sifter. permitsl the upward and downward movement of the. mechanism carried by the platform scale without disconnecting the parts.

Yhile the mounting of the bin. the elevator and the upper and lower screw conveyers upon the platform scale. form an especially advantageous outtit for weighing. blending and elevating and sifting the. flour or other material` it will bc apparent that thebin. the ele Yalor. the upper and lower horizontal screw conveycrs. and the. casing of the vibratory lsifter.V may be permanently supported `by securing them either to the floor or wall or suspending them from the ceiling and instead of employing spur gearing for transmitting motion from the. main shaft of the dough mixer to the vibratory sifter and the elevator. a belt TT and a single clutch TS may be employed as illustrated in Figure 5 of the drawings.

ln the embodiment of the invention illustrated in Figure 5 of the drawings, in which the various instriiiiientalities are fixed instead of being mounted for movenient to permit the operation of the weighing mechanism. the dough mixer is pi'ovided at one eiitl of the main shaft with a pii'llcv T5! to receive the said belt T7 which extends Vfrom the said pulley TS) to a pulley 8() of a horizontal shaft 91 mounted upon the vertical elevator at the upper portion thereof in suitable bearings. and having the said pulley SO arranged at its inner end. lts outer end is connected by sprocket gearing SQ with the vertical elevator, which is connected lwith the upper screw conveyer, as heretofore described. Mounted upon the horizontal shaft 8l is the vertically disposed. beveled gear 83 which meshes with a horizontally disposed rotary gear element 84 which carries a wrist pin 85 for actuating the iod or member of the vibratory sitter in the manner hei-einbefore described. The clutch 78 for' controlling the belt drive mechanism. may be of any desired construction. and it is equippedI with an operating 'lever SG for throwing the belt drive into and out of operation. By employing the belt drive` a single vclutch enables the vibratory sitter and the vertical elevator. upper and `lower screw conveyers. and the agitator of the bin to be started and stopped.

Vhile the belt drive, is illustratedin the accompanying drawings in connection with a readily supported.vertical elevator, bin

y and upper and lower conveyers. it may, ot

course, be used on machines equipped with iosk ' bya coiled spring 92 which is disengaged it is desired' to release the belt.

i ,esame the weighing mechanism to accommodate the belt drive to the vertical movement of the parts incident to the use of the weighL ing mechanism, the belt will Vbe equippedY the weighing operation so that the tension -device will not interfere 'with the proper weighing of the material. After' the material within the bin has been weighed, the tension device is adapted to be swung into engagement with the adjacent fly of the belt 77 and it is pressed against the belt from the arm orl member preparatory to swinging the tension device downward when The arm may be pivotally mounted in any desired manner and the spring is shown detachahly interlocked at one end with the arm or member 91 and with a suitable support at the other end, but any other means may, of

course, be employed for mounting the spring" and for releasing the arm from the tension of the spring when desired. When the ten-v sion device 1s in engagement with the belt, 1t will maintain the belt at the proper tension for driving the upper pulley 80 from l the lower pulley 79 andit will yield to the movement of the parts incident to the 'aetion of the scale when the material, through the operation of the machine, 4is removed from the bin and transferred to the dough mixer.

'.lhe means lfor mounting the vibratory sitter is adapted for use in connection with and' without the weighing mechanism and when used in connection with the weighing mechanism the combined-guide and bearing l5 not only permits the longitudinal reciprocatory movement and the lateral oscillatory movement, which is similar to the r hand action, but the said combined guide and bearing also permits of a vertical pivotalv er tilting movement of the sifter and the rodor member to enable the crank element, which is carried by the weighing mechanism, to move upward and downward without interfering with its rotary movement and its proper actuationof the sitter.

`What l claim is:

l. A machine of the class described, including a weighing mechanism, a bin or receptacle carried by the weighing mechanism, means also carried by the weighing mechanism for conveying material from the bin and for elevating the material, means for sifting the material in an elevated position and driving mechanism. mounted independently of the weighing mechanism and connected with the said means and provided with' means for permitting upward and downward movement of the bin and the elevating and conveying means incident to the operatigin of the weighing mechanism.

2. A machine of the class,clescribed, in Cluding weighing mechanism, a bin carried by'the` weighing mechanism,^an elevator also mounted on the Weighing mechanism, a lowerconveyer extending from the bin to the elevator, and an, upper conveyer projecting trom theu'pper portion of the elevator, and means for receiving material from the .upper "conveyer having a slidable connection with the same. 3.41%. machine of the class described, including a weighing mechanism, a bin mounted upon the weighing mechanism, an elevator also carried by the weighing mechanism, means for conveying the material from the bin to the elevator, an upper con- 'veyer projecting from the elevator and provided -with an outlet, a dough mixer arranged to receive material from the said up,-

per conveyer, and driving mechanism for transmittingv motion from the dough mixer to the .elevator provided with means for compensating for the movement of the cl'udingfweighing mechanism, a bin carried by the weighing mechanism, an elevator also for conveying material from the bin to the elevatnrganupper conveyerprojecting from the elevatoryand driving mechanisrnmounted independently of the weighing 4mechanism andoiinected with the ,elevator and provided with means for compensating for the movement of the weighing mechanism.

5. A machine of the class described, including weighing mechanism', a bin mounted upon the weighing mechanism, an elevator also carried the weighing mechanism, means for Vconveying material from the bin to -the elevator, an upper conveyer projecting from the elevator and provided with an outlet, a movablesifter arranged to receive mounted onthe weighing mechanism, means material fromv the outlet, driving mechanism mounted independently ot the weighing mechanism for actuating the elevator,

vconve-yer and sitter and connected with the same, said driving mechanism being provided with means for'permitting up and down movement of the parts incident to the operation of the weighing mechanism.

6. Ar'-machine of the class described, including weighing mechanism, a bin carried by the weighing mechanism, an elevator also mounted upon the weighing mechanism, means for conveying material from the bin to the elevator', an upper conveyer projecting from the elevator near the top thereof and having' an outlet, and bracing means extending fromthe elevator to the upper conveyer and the bin to form a rigid structure.

7. A machine of the class described, including a weighing mechanism, an elevator' mounted on'the weighingmechanism, a bin located at one side of the elevator, an upper conveyer projecting at the opposite side of the elevator, a lower conveyer extending from the bin 'to the elevator, and fa bracing element secured to the elevator at the top thereof and having oppositely extending inclined members extending in opposite directions to the outer portions of the upper conveyer and the bin. p y

Y8. A machine of the class described, including weighing mechanism, a bin mounted upon the weighing mechanism, an elevator carried by the weighing mechanism. a

I lower conveyer extending from the bin to the elevator, an upper conveyer extending from the elevator, and driving mechanism `con nected with the elevator' and the conveyers and provided with means for permittingT the upward and downward movement of the bin, the elevator land the conveyers incident to the operation of the weighing mechanism.

9. A -machine of the class described, including weighing mechanism, a bin mounted upon the weighing mechanism, an elevator carried by the weighing mechanism, a lower screw conveyer extending from the bin to the elevator, an upper screw conveyer projecting from the elevator, an agitator operating within the bin and connected with the lower conveyer, and driving mechanism for operating the elevator and conveyers and the agitator having means for compensating for the upward and downward movement of the parts incident to the operation of the weighing'mechanism.

10; A machine of the class described, including a bili, an elevator, a screw conveyer for conveyilaig the material from the bin to the elevator-upper conveying means extending from thfe upper portion of the elevator` and having an outlet, an agitator operating within the bin and connected with and actuated by the screw conveyer. and means for weighing the material within the bin without interfering with the operation of the conveyors and agitators.

11. A machine of the class described, in-l cluding a bin provided with a plurality 'of compartments, angelevator, a screwconveye'r extending along the compartments of the `bin for conveying the material thereofl to the elevator', an agitator munted in the bin and provided with arms arranged at intervals along the conveyer and operating within the said compartments, said agitator being actuated by the screw conveyer and upper conveying means extending from the elevator and having an outlet and means for weighing the material within the bin without interfering with the operation of the conveyors and agitators. I

12. A machine of the class described, including a bin, an elevator, lower conveying means for conveying material from the bin to the elevator, a receiver, upper conveying means extending from the elevator and discharging into the receiver, a sifter operating within the receiver, and means common to the elevator, conveying means and the sifter' for operating the same, and means for weighing the material within the bin withoutinterfering with the operation of the conveyors and agitators.

13. A machine of the class described, including a bin, an elevator weighing mechanism carrying the bin and elevator, lower conveying -mearrs for conveying .material from the bin to the elevator, a receiver, upper conveying means extending from the elevator to the receiver, a vibratory sifter mounted for longitudinal reciprocatory and lateral oscillatory movementand means common to the sitter, the elevator, and the conveying means for actuating the same.

14. A machine of the class described, including a bin, an elevator weghing mechanism carrying the bin and elevator, lower conveying means for conveying material vfrom the bin to the elevator. a receiver, upper conveying means extending from the elevator to the receiver, a vibratory sifter mounted for longitudinal reciprocatory and lateral oscillatory movement and for vertical oscillatory movement, and means for actuating the sifter. the' elevator and the conveying means.

15. A machine of the class described, including a bin,` an elevator weighing mechanism carrying the bin and elevator, lower conveying means for conveying material from the bin to the elevator, a receiver, upper conveying means extending from the elevator to the receiver, a vibratory sifter having a rod, a crank element` connected with the rod` a combined guide and bea-ring receiving the rod and permitting a longitudinal reciprocatory and a lateral and vertical oscillatory movement and means for operating the elevator and the'conveying means and for rotating the crank element.

16. A machine of the class described, including a bin, an elevator weighing mechanism carrying the bin and elevator, lower conveying means for conveying material from the bin to the elevator, a receiver, upper conveying means extending from the elevator to the receiver, a vibratory sifter having a rod, a` crank `element connected with the rod, a combined guide and bearing having an opening to receive the rod and provided with opposite convex walls to per-- mit longitudinal reciprocatory and lateral and vertical oscillatory movement and means for actuating the sifter, the elevator and the conveying means.

17. A machine of the class described, in-

cluding a bin, an elevator weighing mechanism carrying the bin and elevator, lower conveying means for conveying material Kfrom the bin to the elevator, a receiver, upperv conveying means extending from the elevator to the receiver, a vibratory sifter having a rod, a crank element connected with the rod, a combined guide and bearing having anv opening receiving the said rod and permitting longitudinal reciprocatory and lateral oscillatory movement, said opening being vertically elongated to permit a verticaltilting or pivoting movement' of the .rod-and sifter and means :for actuating the sifter,`theA elevator and the conveying means.

18. A machine of the class described, including a bin, an elevator means for conveying the material from the bin to the elevator, a receiver open at the topfand bottom and having a door at the side, means for conveying material from the elevator to the receiver, a sifter operating within the receiver and removable through the door thereofyand meanscommon tothe elevator and the conveying means for operating the same.

19.151 machine of the class described, includin-g a bin, an elevator, upper conveying means extending from the elevator, a dough mixer having a drive shaft, a sifter located between the upper conveying means and the dough mixer, a vertical shaft gearing connecting the, lowerend of rthe vertical shaft with the drive shaft, and upper gearing connectingT the'vertical shaft with the sifter, and the elevator and the conveying means.

20. A. machine of the class described,in cluding a bin, an elevator, upper conveying means extending from the elevator, a dough mixer having a drive shaft, a sifter located between the upper conveying means 'and the dough mixer, a vertical shaft gearing connecting the lower end of the vertical shaft with the driveshaft, upper gearing connectling the vertical shaft with the sifter, the

elevator and the conveying means, `and clutches controlling the operation of vthe sifter and the elevator and conveying means. 21. A. machine of the class described,'in cluding a bin, an elevator, upper conveyingr means extending from the elevator, a dough mixer having a drive shaft, a sifter located betweenI the upperl conveying means and the dough mixer, a vertical shaft gearing connecting the lower, end of the vertical shaft with the drive shaft, upper gearing connecting the vertical shaft with the sifter, the elevator and conveying means, a lower clutch controlling the operation of thevertical shaft and an Lipper clutchV controlling the 'operation of`\the elevator and conveying means.

22. A machineof the class described, in-

cluding a bin, an elevator, upper conveying means extending from the elevator, a dough mixer having a drive shaft, a sifter located between the upper conveying means and the dough mixer, a vertical shaft gearing connecting the lower end of the vertical shaft with the drive shaft, a rotary gear element carried by 'the upper end of the vertical shaft and having an eccentric element connected with and actuating the sifter, and means for transmitting motion from the vertical shaft to'the elevator and conveying means.

23. A machine of the class described, including a bin` an elevator, upper conveying means extending from the elevator, a dough mixer having a drive shaft, a sifter located between the upper conveying means and the dough mixer, a vertical shaft gearing confnecting the lower end of the vertical shaft with the driveishaft, a rotary gear element carriedby .the upper end ofthe vertical shaft and having an eccentric element connected with and actuating the sifter, a horizontal shaft located at the upper end of the vertical shaft, a vertical'gear mounted 'on the horizontal shaft and meshing with the rotary gear element and gearing connecting the horizontal shaft with the elevator and conveying means.

24. A machine of the class described, including a bin, an elevator, upper conveying means extending from the elevator, a dough mixer having a drive shaft, a sifter located between the upper conveying means and the dough mixer, a vertical shaft gearing connecting the lower end of the vertical shaft with the drive shaft, a rotary gear element carried by the upper end of the vertical shaft and having an eccentric element connected with and actuating the sifter, a horizontal shaft located at the upper end of the vertical shaft, a vertical gear mounted on the horizontal shaft and meshing with-the4 rotary gear element, gearing connecting the horizontal shaft with the elevator and conveying means, and an upper clutch for controlling the last mentioned gearingv and the operation of the elevator and conveying means. i i

25. A machine of the class described, including a bin, an elevator, upper conveying means, a sifter receiving material from the upper conveying means, a vertical shaft composed of sections, a sleeve connecting the sections and permitting relative slidable movement, gearing connected with the lower end of the vertical shaft for actuating the lll same, a rotary gear element carried by the vator, a receiver arranged to receive material from the upper conveying means, a sifter operating within the receiver, means for supporting the receiver including spaced posts, and a rod connected with the posts and with the receiver.

27. A machine of the class described, including a bin, an elevator weighing mechanism carrying the bin and elevator, conveying means extending from the elevator, a dough mixer', a receiver arranged between the upper conveying means and the dough mixer, spaced posts mounted on the dough mixer, a rod connecting the posts and supporting the receiver and a sifter operating Within the receiver.

28. In a machine of the class described, includingr a bin, an elevator, upper conveying means, a scale having the elevator and bin mounted upon it, and drive mechanism for operating the elevator and the iconveying means, a portion of the driving mechanism being carried by the scale in the movement thereof. Y p

29. In a machine of the class described, including a bin, an elevator, upper yconveying means, a scale having the elevator and bin mounted upon it, and drive mechanism for operating the elevator and the conveying.

signature.

FRANK X. LAUTERBUR. 

